Optimism can be about (consumer spending).Logical formLearned from4 sentences. Optimism can be for a recovery of an economy.Logical formLearned from4 sentences. Optimism can be after a round of talks.Logical formLearned from4 sentences. Optimism can be on (peace moves).Logical formLearned from4 sentences. An optimism may pertain-to doctors.Logical formLearned from4 sentences. An indicator can be constituted-of-or-filled-with (business optimism).Logical formLearned from4 sentences. An international community may express optimism.Logical formLearned from4 sentences. Optimism may last.Logical formLearned from4 sentences. Optimism can be about the future of six-party talks.Logical formLearned from4 sentences. An optimism can be on growth.Logical formLearned from4 sentences. Optimism can be for an election.Logical formLearned from4 sentences. An optimism may be expressed at a weekend.Logical formLearned from4 sentences. Political leaders may warn of optimism.Logical formLearned from4 sentences. (Manufacturing executives) may express optimism.Logical formLearned from4 sentences. A currency may benefit from optimism.Logical formLearned from4 sentences.